be at somebody’s side/stay by somebody’s side/not leave somebody’s side

From Longman Dictionary of Contemporary Englishbe at somebody’s side/stay by somebody’s side/not leave somebody’s sidebe at somebody’s side/stay by somebody’s side/not leave somebody’s sideto be with someone, and take care of them or support themHe faced the reporters with his wife at his side.She nursed him through his illness, never leaving his side. →side